public class ClientCreditsInfo {

    /*
    15.13
    */

    public void insert(String clientID, int c) {

    }

    public boolean remove(String clientID) {

        return false;
    }

    public int lookup(String clientID) {

        return -1;
    }

    public void addAll(int c) {

    }

    public String max() {

        return "";
    }

}
